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Biofortified indica rice attains iron and zinc nutrition dietary targets in the field

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Title Biofortified indica rice attains iron and zinc nutrition dietary targets in the field
 
Creator Trijatmiko, Kurniawan R
Dueñas, Conrado
Tsakirpaloglou, Nikolaos
Torrizo, Lina
Mae Arines, Felichi
Adeva, Cheryl
Balindong, Jeanette
Oliva, Norman
Sapasap, Maria V
Borrero Correa, Jaime C.
Rey, Jessica
Francisco, Perigio
Nelson, Andrew
Nakanishi, Hiromi
Lombi, Enzo
Tako, Elad
Glahn, Raymond P.
Stangoulis, James C.R.
Chadha-Mohanty, Prabhjit
Johnson, Alexander A.T.
Tohme, Joseph M.
Barry, Gerard
Slamet-Loedin, Inez H.
 
Subject oryza sativa
rice
food enrichment
human nutrition
nutrient improvement
plant breeding
yields
arroz
enriquecimiento de los alimentos
nutrición humana
mejoramiento nutricional
fitomejoramiento
rendimiento
 
Description More than two billion people are micronutrient deficient. Polished grains of popular rice varieties have concentration of approximately 2 μg g−1 iron (Fe) and 16 μg g−1 zinc (Zn). The HarvestPlus breeding programs for biofortified rice target 13 μg g−1 Fe and 28 μg g−1 Zn to reach approximately 30% of the estimated average requirement (EAR). Reports on engineering Fe content in rice have shown an increase up to 18 μg g−1 in glasshouse settings; in contrast, under field conditions, 4 μg g−1 was the highest reported concentration. Here, we report on selected transgenic events, field evaluated in two countries, showing 15 μg g−1 Fe and 45.7 μg g−1 Zn in polished grain. Rigorous selection was applied to 1,689 IR64 transgenic events for insert cleanliness and, trait and agronomic performances. Event NASFer-274 containing rice nicotianamine synthase (OsNAS2) and soybean ferritin (SferH-1) genes showed a single locus insertion without a yield penalty or altered grain quality. Endosperm Fe and Zn enrichment was visualized by X-ray fluorescence imaging. The Caco-2 cell assay indicated that Fe is bioavailable. No harmful heavy metals were detected in the grain. The trait remained stable in different genotype backgrounds.
 
Date 2016-01-25
2016-02-11T20:08:05Z
2016-02-11T20:08:05Z
 
Type Journal Article
 
Identifier Trijatmiko, Kurniawan R.; Dueñas, Conrado; Tsakirpaloglou, Nikolaos; Torrizo, Lina; Mae Arines, Felichi; Adeva, Cheryl; Balindong, Jeanette; Oliva, Norman; Sapasap, Maria V.; Borrero, Jaime; Rey, Jessica; Francisco, Perigio; Nelson, Andy; Nakanishi, Hiromi; Lombi, Enzo; Tako, Elad; Glahn, Raymond P.; Stangoulis, James; Chadha-Mohanty, Prabhjit; Johnson, Alexander A. T.; Tohme, Joseph M.; Barry, Gerard; Slamet-Loedin, Inez H.. 2016. Biofortified indica rice attains iron and zinc nutrition dietary targets in the field. Scientific reports 6:19792.
2045-2322
https://hdl.handle.net/10568/70994
https://doi.org/10.1038/srep19792
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 6:19792
 
Source Scientific Reports